US9102024B2 - Clearance increasing jig of heat transfer tube and additional installation method of vibration suppression member - Google Patents

Clearance increasing jig of heat transfer tube and additional installation method of vibration suppression member Download PDF

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Publication number
US9102024B2
US9102024B2 US13/768,526 US201313768526A US9102024B2 US 9102024 B2 US9102024 B2 US 9102024B2 US 201313768526 A US201313768526 A US 201313768526A US 9102024 B2 US9102024 B2 US 9102024B2
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Prior art keywords
clearance
heat transfer
cylinder body
jig
main body
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US13/768,526
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US20140020233A1 (en
Inventor
Takeshi Yamamoto
Kenichi Kawanishi
Masahito Matsubara
Yoshihisa Fujiwara
Tomochika Hamamoto
Yukihide Shimazu
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD. reassignment MITSUBISHI HEAVY INDUSTRIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUJIWARA, YOSHIHISA, HAMAMOTO, Tomochika, KAWANISHI, KENICHI, MATSUBARA, MASAHITO, SHIMAZU, YUKIHIDE, YAMAMOTO, TAKESHI
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/002—Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/002—Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • F22B37/003—Maintenance, repairing or inspecting equipment positioned in or via the headers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49998—Work holding

Definitions

  • the present invention relates to a clearance increasing jig of a heat transfer tube that increases a clearance between adjacent heat transfer tubes and an additional installation method of a vibration suppression member using the clearance increasing jig.
  • a steam generator having a plurality of heat transfer tubes provided therein was known (see, for example, Patent Literature 1).
  • Each of the heat transfer tubes provided in the steam generator has a U shape and a fluid such as a coolant is circulated in the heat transfer tube.
  • vibration fluid excitation vibration
  • an anti-vibration bar as an anti-vibration member is inserted into a clearance of the heat transfer tube, serving as the circular arc portion, in the steam generator.
  • the anti-vibration bar disclosed in Japanese Patent Application Laid-open No. 61-291896 increases clearances of the plurality of heat transfer tubes. That is, the anti-vibration bar is inserted into the clearance of the heat transfer tubes and thereafter, is brought into contact with the heat transfer tubes by increasing the width of the anti-vibration bar to be slightly wider than the clearance of the heat transfer tubes.
  • a bar-shaped member may be used as the vibration suppression member to be additionally installed.
  • a vibration suppression member having substantially the same thickness as the clearance of the heat transfer tubes may be inserted.
  • respective clearances of the heat transfer tubes are not particularly constant due to a size tolerance caused by a variation in flatness level of the heat transfer tube at the circular arc portion.
  • the flatness level of the heat transfer tube represents a difference between a maximum outer diameter and a minimum outer diameter on one end surface which is orthogonal to a longitudinal direction of the heat transfer tube.
  • a clearance increasing jig of a heat transfer tube including: a jig main body inserted into a clearance between adjacent heat transfer tubes; an inflow hole provided in the jig main body and configured to allow a fluid to flow into the jig main body; and an increasing unit provided in the jig main body and configured to increase the clearance as the fluid flows into the jig main body.
  • an additional installation method of a vibration suppression member that additionally installs the vibration suppression member at a clearance of adjacent heat transfer tubes by using the clearance increasing jig according to the first aspect, the method including: inserting the clearance increasing jig into the clearance of the adjacent heat transfer tubes; increasing the clearance by using the clearance increasing jig; inserting the vibration suppression member into the increased clearance; cancelling the increasing of the clearance by using the clearance increasing jig; and drawing the clearance increasing jig from the clearance.
  • FIG. 1 is a schematic diagram of a side cross section of a steam generator in which a clearance increasing jig of a first embodiment is used;
  • FIG. 2 is a schematic diagram when viewed from a plane of a heat transfer tube group
  • FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2 ;
  • FIG. 4 is a perspective schematic view of the heat transfer tube group
  • FIG. 5 is an axial cross-sectional view of one example of the heat transfer tube group on a center surface
  • FIG. 6 is an axial cross-sectional view of one example of the heat transfer tube group on the center surface
  • FIG. 7 is a plan view of the clearance increasing jig according to the first embodiment when viewed from a front surface;
  • FIG. 8 is a plan view of the clearance increasing jig according to the first embodiment when viewed from a rear surface;
  • FIG. 9 is a cross-sectional view of the clearance increasing jig according to the first embodiment.
  • FIG. 10 is an explanatory diagram of one example of an additional installation method of the vibration suppression member using the clearance increasing jig of the first embodiment
  • FIG. 11 is an explanatory diagram of one example of an additional installation method of the vibration suppression member using the clearance increasing jig of the first embodiment
  • FIG. 12 is an explanatory diagram of one example of an additional installation method of the vibration suppression member using the clearance increasing jig of the first embodiment
  • FIG. 13 is an explanatory diagram of one example of an additional installation method of the vibration suppression member using the clearance increasing jig of the first embodiment
  • FIG. 14 is an explanatory diagram of one example of an additional installation method of the vibration suppression member using the clearance increasing jig of the first embodiment
  • FIG. 15 is an explanatory diagram of one example of an additional installation method of the vibration suppression member using the clearance increasing jig of the first embodiment
  • FIG. 16 is a configuration diagram of a plane and a side of a clearance increasing jig according to a second embodiment
  • FIG. 17 is a side cross-sectional view of a clearance increasing jig according to a third embodiment
  • FIG. 18 is a plan view of the clearance increasing jig according to the third embodiment.
  • FIG. 19 is a cross-sectional view of the clearance increasing jig according to the third embodiment.
  • FIG. 20 is a plan view of a clearance increasing jig according to Modified Example 1;
  • FIG. 21 is a side cross-sectional view of a clearance increasing jig according to Modified Example 2.
  • FIG. 22 is a flowchart of an additional installation method of the vibration suppression member.
  • An object of the embodiments is to provide a clearance increasing jig of a heat transfer tube used to appropriately insert a vibration suppression member in a clearance of adjacent heat transfer tubes, and an additional installation method of the vibration suppression member using the clearance increasing jig.
  • FIG. 1 is a schematic diagram of a side cross section of a steam generator in which a clearance increasing jig of a first embodiment is used.
  • a steam generator 1 used in a pressurized water reactor (PWR) is provided.
  • a primary coolant for example, light water
  • a nuclear reactor coolant and a neutron moderator which are circulated in a nuclear reactor
  • a secondary coolant which is circulated in a turbine flow into the steam generator 1 .
  • the primary coolant which becomes in a high temperature and a high pressure exchanges heat with the secondary coolant to generate steam by evaporating the secondary coolant and further, cool the primary coolant which becomes in the high temperature and the high pressure.
  • a first vibration suppression member 14 A preinstalled, which is attached in assembling the steam generator 1 and a second vibration suppression member 14 B which is newly additionally installed after assembling the steam generator 1 (for example, after installing the steam generator 1 ) are attached to a plurality of heat transfer tubes 5 provided in the steam generator 1 .
  • the second vibration suppression member 14 B is attached by using the clearance increasing jig.
  • the steam generator 1 increases vertically and further, has a sealed hollow cylindrical shape.
  • the steam generator 1 has a torso 2 of which a lower portion has a slightly smaller diameter than an upper portion thereof.
  • the torso 2 has a vessel external cylinder 3 having a cylindrical shape, which is spaced apart from an inner wall surface of the torso 2 by a predetermined clearance, in the lower portion thereof.
  • the lower portion of the vessel external cylinder 3 is installed to extend up to the vicinity of a tube plate 4 disposed below the torso 2 in a lower portion of the torso 2 .
  • a heat transfer tube group 51 is provided in the vessel external cylinder 3 .
  • the heat transfer tube group 51 includes the plurality of heat transfer tubes 5 having an inverted U shape.
  • each heat transfer tube 5 the U-shaped circular arc portion is disposed to be convex upward, and a middle portion is supported on the vessel external cylinder 3 through a plurality of tube support plates 6 while both ends of a lower side are supported on the tube plate 4 .
  • a plurality of through-holes (not illustrated) is formed on the tube support plate 6 , and each heat transfer tube 5 is inserted into the through-hole.
  • a water chamber 7 is provided on the bottom of the torso 2 .
  • the inside of the water chamber 7 is partitioned into an inlet chamber 71 and an outlet chamber 72 by a partition 8 .
  • the inlet chamber 71 is in communication with one end portion of each heat transfer tube 5 and the outlet chamber 72 is in communication with the other end portion of each heat transfer tube 5 .
  • An inlet nozzle 74 which leads to the outside of the torso 2 is formed in the inlet chamber 71 and an outlet nozzle 75 which leads to the outside of the torso 2 is formed in the outlet chamber 72 .
  • a cooling water pipe (not illustrated) to which the primary coolant is sent from the PWR is connected to the inlet nozzle 74 and a cooling water pipe (not illustrated) through which the primary coolant after heat exchange is sent to the PWR is connected to the outlet nozzle 75 .
  • the torso 2 includes a steam-water separator 9 configured to separate the secondary coolant after heat exchange into steam (vapor phase) and hot water (liquid phase) and a moisture separator 10 configured to remove moisture of the separated steam to be close to dry steam, within an upper portion thereof.
  • a water supply pipe 11 that supplies the secondary coolant into the torso 2 from the outside is inserted between the steam-water separator 9 and the heat transfer tube group 51 .
  • a steam exhaust hole 12 is formed on the top of the torso 2 .
  • a water supply path 13 that drops the second coolant supplied into the torso 2 from the water supply pipe 11 between the torso 2 and the vessel external cylinder 3 to return the secondary coolant to the tube plate 4 , and lifts the secondary coolant along the heat transfer tube group 51 is formed in the lower portion of the torso 2 .
  • a cooling water pipe (not illustrated) configured to send steam to the turbine is connected to the steam exhaust hole 12 and a cooling water pipe (not illustrated) for supplying the secondary coolant acquired by cooling the steam used in the turbine with a condenser (not illustrated) is connected to the water supply pipe 11 .
  • the primary coolant heated by the PWR is sent to the inlet chamber 71 and circulated through the plurality of heat transfer tubes 5 to reach the outlet chamber 72 .
  • the secondary coolant cooled by the moderator is sent to the water supply pipe 11 and lifted along the heat transfer tube group 51 through the water supply path 13 in the torso 2 .
  • the high-pressure and high-temperature primary coolant and the secondary coolant exchange heat with each other in the torso 2 .
  • the cooled primary coolant is returned to the PWR from the outlet chamber 72 .
  • the secondary coolant which exchanges heat with the high-pressure and high-temperature primary coolant is lifted in the torso 2 and is separated into steam and hot water by the steam-water separator 9 . Moisture is removed from the separated steam by using the moisture separator 10 and thereafter, the steam is sent to the turbine.
  • FIG. 2 is a schematic view when viewed from a plane of the heat transfer tube group.
  • FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2 .
  • FIG. 4 is a perspective schematic view of the heat transfer tube group.
  • the circular arc portions of the plurality of heat transfer tubes 5 having the inverted U shape are disposed on the top of the heat transfer tube group 51 to have a semi-circular shape. That is, as illustrated in FIG. 3 , each heat transfer tube 5 is bent in a predetermined curvature radius on a plane. As a result, the heat transfer tube 5 is bilaterally symmetric to each other through a center surface C which is an axial cross section of the heat transfer tube 5 passing through an apex which becomes the center of the circular arc portion and the center of the curvature radius.
  • the plurality of heat transfer tubes 5 is provided in parallel so that axial directions are parallel to each other while the curvature radius is increased as the plurality of heat transfer tubes 5 faces the outside of a diameter direction of the curvature radius on each plane, thereby becoming heat transfer tube layers 5 A.
  • the heat transfer tube layers 5 A are provided to be parallel by a predetermined clearance in an out-of-plane direction perpendicular to the in-plane direction.
  • the curvature radius becomes smaller.
  • the plurality of heat transfer tubes 5 are arranged in parallel, and as a result, the top of the heat transfer tube group 51 has the semi-circular shape.
  • FIG. 5 is an axial cross-sectional view of one example of the heat transfer tube group on the center surface.
  • FIG. 6 is an axial cross-sectional view of one example of the heat transfer tube group on the center surface.
  • the heat transfer tube group 51 provided as above, axial cross sections of the plurality of heat transfer tubes 5 on the center surface C thereof are disposed as illustrated in FIG. 5 or 6 .
  • the plurality of heat transfer tubes 5 may be disposed in a lattice shape on the center surface C.
  • the plurality of heat transfer tubes 5 may be disposed in a zigzag shape on the center surface C.
  • the plurality of vibration suppression members 14 is differently arranged according to arrangement of the plurality of heat transfer tubes 5 .
  • the plurality of vibration suppression members 14 is respectively inserted among the plurality of heat transfer tube layers 5 A which is arranged in parallel.
  • Each vibration suppression member 14 is made of a metallic material such as, for example, stainless, and the like.
  • the plurality of vibration suppression members 14 includes a plurality of preinstalled (existing) first vibration suppression members 14 A and a plurality of second vibration suppression members 14 B to be additionally installed, as described above.
  • some of the second vibration suppression members 14 B to be additionally installed are exemplified and are not arranged as illustrated in FIG. 4 .
  • the first vibration suppression member 14 A is formed by bending a bar body forming a rectangular cross section substantially in a V shape.
  • a bent portion which is bent is arranged to be positioned at the center (inside) of a diameter direction in a curvature radius of the heat transfer tube 5 and both end portions thereof are arranged to be positioned outside the diameter direction. Both end portions of the first vibration suppression member 14 A protrude outward from the heat transfer tube 5 which is provided at an outermost side of the diameter direction in the curvature radius.
  • the plurality of first vibration suppression members 14 A includes a V-shaped large first vibration suppression member 14 A and a V-shaped small first vibration suppression member 14 A.
  • the V-shaped small first vibration suppression member 14 A is arranged in the V-shaped large first vibration suppression member 14 A to form a pair.
  • three groups of the first vibration suppression members 14 A that form a pair are installed at a clearance of two heat transfer tube layers 5 A which are adjacent (laminated) in an out-of-plane direction.
  • Three groups of the first vibration suppression members 14 A which form a pair are provided in a circumferential direction of the curvature radius.
  • one group of the first vibration suppression members 14 A which form a pair are provided at the center so that the bent portion thereof is positioned on the center surface C, and two groups of first vibration suppression members 14 A which form a pair are respectively provided at both sides of the first vibration suppression members 14 A which form a pair at the center.
  • the plurality of first vibration suppression members 14 A is installed, and as a result, the ends of the plurality of first vibration suppression members 14 A are, in parallel, arranged in line in the out-of-plane direction of the heat transfer tube layer 5 A along a semi-circular arc of the heat transfer tube group 51 , as illustrated in FIG. 4 .
  • the ends of the first vibration suppression members 14 A which are provided in line are installed in plural columns by a predetermined clearance in the in-plane direction of the heat transfer tube layer 5 A according to a semi-circular arc of the heat transfer tube group 51 . That is, the ends of the plurality of first vibration suppression members 14 A are arranged in the lattice shape.
  • the ends of the plurality of first vibration suppression members 14 A are arranged in the lattice shape, and as a result, the clearance of the heat transfer tube layer 5 A is partitioned into plural partitions in the in-plane direction of the heat transfer tube layer 5 A and plural partitions in the out-of-plane direction of the heat transfer tube layer 5 A. That is, the clearance of the heat transfer tube layer 5 A is partitioned into plural partitions to have the lattice shape by the ends of the plurality of first vibration suppression member 14 A. As a result, the clearance of the heat transfer tube layer 5 A is prescribed by the first vibration suppression member 14 A.
  • Bonding members 15 A are respectively provided at both end portions of each first vibration suppression member 14 A.
  • the bonding member 15 A is bonded to a holding member 16 A to be described below, as illustrated in FIGS. 2 to 4 .
  • the bonding member 15 A is made of the metallic material such as, for example, stainless, and the like.
  • the holding member 16 A is a bar body having an arc shape on an outer periphery of a hemisphere shape of the heat transfer tube group 51 , as illustrated in FIGS. 2 and 4 .
  • the holding member 16 A is arranged so that the ends of the first vibration suppression members 14 A which are in parallel arranged in line according to the semi-circular arc of the heat transfer tube group 51 are connected to each other.
  • the bonding member 15 A provided at the end of each first vibration suppression member 14 A is bonded to the holding member 16 A by welding, and the like.
  • An attachment member 17 to be described below is bonded to the holding member 16 A by the welding, and the like.
  • the attachment member 17 has a substantially U-shape, and is inserted between a heat transfer tube 5 provided at the outermost side of the diameter direction in the curvature radius and a heat transfer tube 5 provided inside thereof. Both end portions of the attachment member 17 are bonded to the holding member 16 A by the welding, and the like to attach the holding member 16 A to the heat transfer tube group 51 .
  • the first vibration suppression member 14 A having a V shape is used, but the first vibration suppression member having a rectangular parallelepiped shape (linear shape) is used or the first vibration suppression member having the V shape and the first vibration suppression member having the rectangular parallelepiped shape may coexist and be used and the first vibration suppression member 14 A is not particularly limited.
  • the second vibration suppression member 14 B is formed by the bar body having the rectangular parallelepiped shape (linear shape) forming a rectangular cross section.
  • the second vibration suppression member 14 B is arranged so that a longitudinal direction thereof is the same as the diameter direction of the curvature radius.
  • one longitudinal end thereof is arranged to be positioned at the center (inside) of the diameter direction in the curvature radius of the heat transfer tube 5 and the other longitudinal end thereof is arranged to be positioned outside the diameter direction.
  • the second vibration suppression member 14 B is inserted into the clearance of the heat transfer tubes 5 at one end side.
  • the other end of the second vibration suppression member 14 B protrudes outward from the heat transfer tube 5 which is provided at the outermost side of the diameter direction in the curvature radius.
  • an insertion path where the second vibration suppression member 14 B is inserted into the clearance of the heat transfer tubes 5 is different according to arrangement of the plurality of heat transfer tubes 5 illustrated in FIGS. 5 and 6 . That is, when the plurality of heat transfer tubes 5 is arranged in the lattice shape as illustrated in FIG. 5 , the second vibration suppression member 14 B may be inserted along the heat transfer tubes 5 . Meanwhile, when the plurality of heat transfer tubes 5 is arranged in the zigzag shape as illustrated in FIG. 6 , the second vibration suppression member 14 B may be inserted obliquely at a predetermined angle throughout the heat transfer tubes 5 .
  • the insertion path of the second vibration suppression member 14 B is not particularly limited, but an optimal insertion path may be set according to the arrangement of the plurality of heat transfer tubes 5 .
  • the insertion path is a bent path having a plurality of bent portions
  • the second vibration suppression member 14 B may be bent according to the insertion path.
  • the plurality of second vibration suppression members 14 B is appropriately provided at a plurality of clearances of the heat transfer tube layer 5 A having the lattice shape, which are partitioned by the ends of the plurality of first vibration suppression members 14 A.
  • three second vibration suppression members 14 B are provided with respect to one group of first vibration suppression members 14 A which form a pair, respectively and two second vibration suppression members 14 B may be provided between three groups of first vibration suppression members 14 A which form a pair.
  • one second vibration suppression member 14 B is provided inside the V-shaped small first vibration suppression member 14 A.
  • the other two second vibration suppression members 14 B are respectively provided between both end portions of the V-shaped small first vibration suppression member 14 A and the both end portions of the V-shaped large first vibration suppression member 14 A.
  • Two second vibration suppression members 14 B provided between three groups of first vibration suppression members 14 A which form a pair are respectively provided between one group of first vibration suppression members 14 A forming a pair, which are provided at the center and two groups of first vibration suppression members 14 A forming a pair, which are provided at both sides thereof.
  • the second vibration suppression member 14 B has a rectangular cross-sectional shape, and the second vibration suppression member 14 B and the heat transfer tube 5 linearly contact each other in that each heat transfer tube 5 is a circular tube.
  • the plurality of second vibration suppression members 14 B is installed, and as a result, the ends of the plurality of second vibration suppression members 14 B are in parallel arranged in line in the out-of-plane direction of the heat transfer tube layer 5 A according to the semi-circular arc of the heat transfer tube group 51 , similarly as the first vibration suppression member 14 A although not illustrated.
  • the ends of the second vibration suppression members 14 B which are provided in line are installed in plural columns by a predetermined clearance in the in-plane direction of the heat transfer tube layer 5 A according to the semi-circular arc of the heat transfer tube group 51 .
  • Bonding members 15 B are provided at the other end portions (the end portion outward in the diameter direction) of the respective second vibration suppression members 14 B, respectively.
  • the bonding member 15 B is bonded to a holding member 16 B to be described below, as illustrated in FIGS. 2 and 3 .
  • the bonding member 15 B is made of the metallic material such as, for example, stainless, and the like.
  • the holding member 16 B is substantially the same as the holding member 16 A as illustrated in FIG. 2 and is a bar body which is formed in the arc shape on the semi-circular outer periphery of the heat transfer tube group 51 .
  • the holding member 16 B is arranged so that the ends of the second vibration suppression members 14 B which are in parallel arranged in line according to the semi-circular arc of the heat transfer tube group 51 are connected to each other. As a result, the holding member 16 B is arranged between the adjacent holding members 16 A.
  • the bonding member 15 B provided at the other end of each second vibration suppression member 14 B is bonded to the holding member 16 B by the welding, and the like.
  • FIG. 7 is a plan view of the clearance increasing jig according to the first embodiment when viewed from a front surface.
  • FIG. 8 is a plan view of the clearance increasing jig according to the first embodiment when viewed from a rear surface.
  • FIG. 9 is a cross-sectional view of the clearance increasing jig according to the first embodiment.
  • the clearance increasing jig 80 is not limited to this using method.
  • the clearance increasing jig 80 may be used when the second vibration suppression member 14 B is attached at the time of assembling the steam generator 1 .
  • the clearance increasing jig 80 includes a jig main body 81 , a guide member 82 , and a manipulation member 83 .
  • the jig main body 81 includes a balloon part (increasing unit) 85 which is flexibly expandable and a rear end member 86 attached to the balloon part 85 .
  • the balloon part 85 is extended in a longitudinal direction and configured by bonding two sheets on the periphery. A fluid flows into the balloon part 85 , which is expandable.
  • one longitudinal end is an insertion-direction front end and the other longitudinal end is an insertion-direction rear end.
  • the rear end member 86 is provided at a rear end of the balloon part 85 . As illustrated in FIG.
  • the rear end member 86 is configured by butt-screwing both ends of a pair of concave-shaped members 86 a having a concave-shaped cross section and the balloon part 85 is held in an internal space formed by butting the pair of concave-shaped members 86 a .
  • An inflow hole 88 which is a circular aperture is formed at the rear end member 86 and the inflow hole 88 is in communication with up to the inside of the balloon part 85 .
  • a fluid supply device 90 is connected to the inflow hole 88 through a supply pipe 91 and the fluid supply device 90 supplies a fluid for expanding the balloon part 85 toward the inflow hole 88 .
  • the fluid water may be used, but the fluid is not limited to the water and air, and the like may be used. As such, the fluid flows into the jig main body 81 , which is expandable.
  • the balloon part 85 before expansion, into which the fluid does not flow, is formed in a thin flexible sheet shape. Meanwhile, the balloon part 85 after expansion, into which the fluid flows through the inflow hole 88 , is larger than the clearance of the heat transfer tubes 5 . That is, the balloon part 85 after expansion is longer than the length of the first vibration suppression member 14 A in the out-of-plane direction.
  • the guide member 82 is provided on one surface of the balloon part 85 , and provided in a longitudinal direction along the balloon part 85 .
  • the guide member 82 is configured by, for example, a metallic thin plate and is transformable to a predetermined shape according to the insertion path of the clearance of the heat transfer tubes.
  • the guide member 82 is held by a plurality of restraining members 94 provided on one surface of the balloon part 85 .
  • the manipulation member 83 is configured by a circular pipe and one axial end of the manipulation member 83 is bonded to the rear end member 86 by the welding, and the like. In this case, the manipulation member 83 is bonded in the same direction as the longitudinal direction of the balloon part 85 .
  • FIGS. 10 to 15 are explanatory diagrams of one example of the additional installation method of the vibration suppression member using the clearance increasing jig of the first embodiment.
  • FIG. 22 is a flowchart of the additional installation method of the vibration suppression member. As illustrated in FIG. 10 , in the preinstalled steam generator 1 before installing the second vibration suppression member 14 B, the plurality of heat transfer tube layers 5 A (only the heat transfer tube 5 at the outermost side is illustrated in FIG.
  • the plurality of first vibration suppression members 14 A is provided at the clearances of the adjacent heat transfer tube layers 5 A, and the ends of the plurality of first vibration suppression members 14 A are arranged in the lattice shape. As a result, the width of the clearance of the adjacent heat transfer tube layers 5 A is prescribed by the first vibration suppression member 14 A which are provided at the clearance.
  • the jig main body 81 is first manipulated by using the manipulation member 83 and the jig main body 81 before expansion is inserted into the predetermined clearance of the heat transfer tubes 5 , as illustrated in FIG. 11 (jig insertion process: step S 1 of FIG. 22 ).
  • the jig main body 81 is inserted into the insertion path illustrated in FIG. 5 or 6 .
  • the balloon part 85 is inserted along the insertion path while the balloon part 85 is guided by the guide member 82 .
  • the fluid supply device 90 supplies the fluid to the inside of the balloon part 85 through the supply pipe 91 , as illustrated in FIG. 12 .
  • the jig main body 81 increases the clearance of the heat transfer tubes 5 as the balloon part 85 is increased (clearance increasing process: step S 2 of FIG. 22 ).
  • the second vibration suppression member 14 B is inserted while the clearance is increased, as illustrated in FIG. 13 (member insertion process: step S 3 of FIG. 22 ).
  • the second vibration suppression member 14 B When the second vibration suppression member 14 B is inserted, the supply of the fluid from the fluid supply device 90 stops and the pressure is released. Then, the jig main body 81 is depressurized, and as a result, some of the fluid flow out through the inflow hole 88 from the inside. When the fluid flows out, the jig main body 81 cancels the increasing of the clearance of the heat transfer tubes 5 as the balloon part 85 is deflated, as illustrated in FIG. 14 (increasing cancellation process: step S 4 of FIG. 22 ). When the increasing of the clearance by the jig main body 81 is cancelled, the inserted second vibration suppression member 14 B is engaged by the heat transfer tubes 5 to contact the heat transfer tubes 5 . In addition, as illustrated in FIG.
  • the jig main body 81 in which the balloon part 85 is deflated is smaller than the clearance of the heat transfer tube 5 , the jig main body 81 is drawn from the clearance by manipulating the manipulation member 83 in this state (jig drawing process: step S 5 of FIG. 22 ). As a result, the additional installation of the second vibration suppression member 14 B ends. By repeating these processes, the plurality of second vibration suppression members 14 B is additionally installed.
  • the second vibration suppression member 14 B may be newly arranged by using the clearance increasing jig 80 , in addition to the preinstalled first vibration suppression member 14 A.
  • the clearance increasing jig 80 allows the fluid to flow into the jig main body 81 through the inflow hole 88 to increase the balloon part 85 of the jig main body 81 .
  • the clearance of the heat transfer tubes 5 may be increased by the balloon part 85 .
  • the second vibration suppression member 14 B since the second vibration suppression member 14 B may be inserted into the clearance of the heat transfer tubes 5 , the second vibration suppression member 14 B may be appropriately inserted.
  • the inserted second vibration suppression member 14 B may contact each heat transfer tube 5 , the vibration of each heat transfer tube 5 may be appropriately suppressed. Accordingly, in the steam generator 1 , abrasion may be reduced at a contact portion between the heat transfer tube 5 and the vibration suppression member 14 .
  • the balloon part 85 may be smaller than the clearance before the fluid flows in and may be increased to be larger than the clearance after the fluid flows in.
  • the jig main body 81 before the fluid flows in may be easily inserted into the clearance of the heat transfer tubes 5 . Further, the fluid flows into the jig main body 81 to significantly increase the clearance of the heat transfer tubes 5 .
  • the jig main body 81 may be inserted along the insertion path by the guide member 82 , the jig main body 81 may be appropriately inserted even when the insertion path formed according to the arrangement of the plurality of heat transfer tubes 5 is bent.
  • FIG. 16 is a configuration diagram of a plane and a side of the clearance increasing jig according to the second embodiment.
  • the clearance increasing jig 100 of the second embodiment is configured by processing a circular pipe.
  • the clearance increasing jig 100 according to the second embodiment will be described.
  • the clearance increasing jig 100 is acquired by press-processing the circular pipe having apertures at both axial sides.
  • one aperture of the circular pipe is plastically deformed in a flat shape.
  • a flat portion 100 a of the plastically deformed circular pipe is in a larger range than a cylinder portion 100 b which is not plastically deformed.
  • the flat portion 100 a has a space in which the fluid is flowable therein.
  • the flat portion 100 a before expansion, in which the fluid does not flow, is smaller than the clearance of the heat transfer tubes 5 . That is, the flat portion 100 a before expansion is shorter than the length of the first vibration suppression member 14 A in the out-of-plane direction.
  • the flat portion 100 a after expansion, in which the fluid flows, is larger than the clearance of the heat transfer tubes 5 . That is, the flat portion 100 a after expansion is longer than the length of the first vibration suppression member 14 A in the out-of-plane direction.
  • One aperture in the flat portion 100 a is bonded by the welding, and the like to be encapsulated. Meanwhile, the other aperture in the cylinder portion 100 b is used as an inflow hole 105 .
  • the clearance increasing jig 100 may be easily manufactured by performing simple processing of the circular pipe.
  • a square pipe may be used in the case of a pipe body.
  • FIG. 17 is a side cross-sectional view of the clearance increasing jig according to the third embodiment.
  • FIG. 18 is a plan view of the clearance increasing jig according to the third embodiment.
  • FIG. 19 is a cross-sectional view of the clearance increasing jig according to the third embodiment.
  • the balloon part 85 has flexibility, but in the clearance increasing jig 110 of the third embodiment, a jig main body 111 has rigidity.
  • FIGS. 17 to 19 the clearance increasing jig 110 according to the third embodiment will be described.
  • the clearance increasing jig 110 of the third embodiment includes a square cylinder body (increasing unit) 115 , a front end member 116 , and a rear end member 117 , as the jig main body 111 .
  • the square cylinder body 115 is configured by a cylinder body having a square cross section, which has four sides, and extends in a longitudinal direction and has apertures at both longitudinal sides.
  • the square cylinder body 115 is configured by forming a groove that increases in the longitudinal direction by butting both ends of a pair of concave-shaped members 115 a having a concave-shaped cross section and bonding the groove through the welding, and the like.
  • the square cylinder body 115 configured as above has a pair of non-contact portions 120 which does not contact the heat transfer tube 5 at a pair of sides facing each other, where a pair of welding portions M is formed. In this case, the pair of welding portions M serve as rib portions that reinforce the pair of non-contact portions 120 , respectively.
  • each non-contact portion 120 since rigidity is increased by each welding portion M, axial bending deformation of the square cylinder body 115 is difficult to occur.
  • the square cylinder body 115 has contact portions 121 which contact the heat transfer tube 5 at a pair of sides facing each other, where a pair of welding portions M are not formed.
  • a plate thickness of the square cylinder body 115 at each non-contact portion 120 is larger than that of the square cylinder body 115 at each contact portion 121 .
  • angled portions on an inner surface of the square cylinder body 115 are formed by curved surfaces capable of dispersing stress. The fluid flows into the square cylinder body 115 configured as above, which is expandable.
  • the square cylinder body 115 before expansion, in which the fluid does not flow, is smaller than the clearance of the heat transfer tubes 5 . That is, the square cylinder body 115 before expansion is shorter than the length of the first vibration suppression member 14 A in the out-of-plane direction. Meanwhile, the square cylinder body 115 after expansion, in which the fluid flows, is larger than the clearance of the heat transfer tubes 5 . That is, the square cylinder body 115 after expansion is longer than the length of the first vibration suppression member 14 A in the out-of-plane direction.
  • the front end member 116 fits in one aperture of the square cylinder body 115 and is bonded by the welding, and the like to encapsulate one aperture.
  • the front end member 116 is formed in a tapered shape in which the end thereof is tapered toward a longitudinal front end in a direction in which the contact portions 121 face each other, that is, a direction in which the heat transfer tubes 5 face each other.
  • the rear end member 117 fits in the other aperture of the square cylinder body 115 and is bonded by the welding, and the like to encapsulate the other aperture.
  • the rear end member 117 is larger than the clearance of the heat transfer tube 5 and includes an inflow hole 125 , an outflow hole 126 , and a path 127 configured to connect the inflow hole 125 , the outflow hole 126 , and the inside of the square cylinder body 115 .
  • An opening/closing valve 131 is provided in each of the inflow hole 125 and the outflow hole 126 .
  • the fluid supply device 90 is connected to the inflow hole 125 through the supply pipe 91 .
  • the path 127 includes a first path 127 a connecting the inflow hole 125 and the outflow hole 126 , and a second path 127 b which is branched from the first path 127 a to reach the inside of the square cylinder body 115 .
  • the first path 127 a increases in a direction perpendicular to the longitudinal direction.
  • the second path 127 b increases in the longitudinal direction.
  • the first path 127 a and the second path 127 b are provided to be perpendicular to each other.
  • the opening/closing valve 131 of the inflow hole 125 When the opening/closing valve 131 of the inflow hole 125 is opened and the opening/closing valve 131 of the outflow hole 126 is closed while the fluid is supplied from the fluid supply device 90 through the supply pipe 91 , the fluid flows into the square cylinder body 115 by passing through the first path 127 a and the second path 127 b through the inflow hole 125 .
  • the square cylinder body 115 is expanded.
  • the square cylinder body 115 is capable of increasing the clearance of the heat transfer tubes 5 .
  • the fluid flows to the outside of the square cylinder body 115 from the outflow hole 126 by passing through the second path 127 b and the first path 127 a .
  • the square cylinder body 115 is contracted (deflated). As a result, the square cylinder body 115 is easily drawn from the clearance of the heat transfer tubes 5 .
  • the second vibration suppression member 14 B may be newly arranged by using the clearance increasing jig 110 , in addition to the preinstalled first vibration suppression member 14 A.
  • the clearance increasing jig 110 allows the fluid to flow into the jig main body 111 through the inflow hole 125 to increase the square cylinder body 115 of the jig main body 111 .
  • the clearance of the heat transfer tubes 5 may be increased by the square cylinder body 115 .
  • the second vibration suppression member 14 B since the second vibration suppression member 14 B may be inserted into the clearance of the heat transfer tubes 5 , the second vibration suppression member 14 B may be appropriately inserted.
  • the inserted second vibration suppression member 14 B may contact each heat transfer tube 5 , the vibration of each heat transfer tube 5 may be appropriately suppressed. Accordingly, in the steam generator 1 , abrasion may be reduced at a contact portion between the heat transfer tube 5 and the vibration suppression member 14 .
  • the front end member 116 and the rear end member 117 are attached to both longitudinal sides of the square cylinder body 115 , respectively, to configure the jig main body 111 .
  • the clearance of the heat transfer tubes 5 may be appropriately increased.
  • the contact portion 121 side of the square cylinder body 115 may be easily expanded.
  • the thickness of the square cylinder body 115 at the non-contact portion 120 is increased or the pair of welding portions M are provided, and as a result, the rigidity of the square cylinder body 115 at the non-contact portion 120 side may be higher than that of the square cylinder body 115 at the contact portion 121 side, and the square cylinder body 115 may be difficult to bend along the non-contact portion 120 (longitudinal direction).
  • the rigidity of the square cylinder body 115 at the non-contact portion 120 side is higher than that of the square cylinder body 115 at the contact portion 121 side, and as a result, the non-contact portion 120 side of the square cylinder body 115 serves as a rib and is difficult to bend in an axial direction of the square cylinder body 115 . Therefore, the square cylinder body 115 may be inserted directly into the clearance of the heat transfer tubes 5 .
  • the angled portions on the inner surface of the square cylinder body 115 may be formed in the curved surfaces, stress which is concentrated on the inner surface of the angled portion due to the fluid that flows into the square cylinder body 115 may be reduced. Therefore, deformation of the square cylinder body 115 by the stress may be suppressed and tolerance of the jig main body 111 may be improved.
  • the front end member 116 may be tapered in the direction where the heat transfer tubes 5 face each other, the front end member 116 may be easily inserted into the clearance of the heat transfer tubes 5 .
  • the jig main body 111 may be suppressed from dropping to the clearance of the heat transfer tubes 5 .
  • the first path 127 a may be provided to extend in the direction perpendicular to the longitudinal direction.
  • the rear end member 117 may extend in the direction perpendicular to the longitudinal direction of the jig main body 111 . Therefore, the rear end member 117 may be difficult to drop to the clearance of the heat transfer tubes 5 .
  • the front end member 116 is tapered in the direction where the heat transfer tubes 5 face each other, but is not limited to this configuration and may have a configuration of Modified Example 1 illustrated in FIG. 20 . That is, the front end member 116 may be formed in the tapered shape in which the end thereof is tapered toward the longitudinal front end in a direction in which the non-contact portions 120 face each other, that is, the axial direction of the heat transfer tube 5 . According to this configuration, the front end member 116 may be easily inserted by the clearance of the heat transfer tubes 5 .
  • the path 127 includes the first path 127 a and the second path 127 b , but is not limited to the configuration and may have a configuration of Modified Example 2 illustrated in FIG. 21 . That is, the path 127 includes a third path 127 c configured to connect the inflow hole 125 and the inside of the square cylinder body 115 and a fourth path 127 d that is branched from the third path 127 c to reach the outflow hole 126 .
  • the third path 127 c extends in the longitudinal direction.
  • the fourth path 127 d extends in a direction perpendicular to the longitudinal direction.
  • the third path 127 c and the fourth path 127 d are provided to be perpendicular to each other.
  • the inflow hole 125 and the outflow hole 126 may be arranged differently from each other by 90°, and the fourth path 127 d may be a path shorter than the first path 127 a described above, and as a result, the rear end member 117 may have a simple configuration.
  • first to third embodiments may be appropriately combined.
  • the manipulation member 83 of the first embodiment may be provided in the third embodiment and the outflow hole 126 of the third embodiment may be provided in the first embodiment.
  • a fluid flows into a jig main body through an inflow hole to increase an increasing unit provided in the jig main body.
  • a clearance of heat transfer tubes may be increased by using the increasing unit.
  • the vibration suppression member since a vibration suppression member may be inserted into the clearance of the heat transfer tubes, the vibration suppression member may be appropriately inserted.
  • the jig main body before the fluid flows in may be easily inserted into the clearance of the heat transfer tubes. Further, the fluid flows into the jig main body to significantly increase the clearance of the heat transfer tubes.
  • the clearance of the heat transfer tubes may be increased.
  • the jig main body may serve as even the increasing unit, the structure of the jig main body may be simplified.
  • the jig main body is provided along the insertion path by a guide member to be appropriately inserted into the insertion path.
  • the jig main body may be easily manufactured.
  • a front end member and a rear end member are attached to both axial sides of a cylinder body to configure the jig main body.
  • the square cylinder body since rigidity of a square cylinder body at a non-contact portion may be increased, the square cylinder body may be difficult to bend along the non-contact portion. As a result, the square cylinder body may be inserted directly into the clearance of the heat transfer tubes.
  • the contact portion side of the square cylinder body may be easily expanded. Further, since the thickness of the square cylinder body at a non-contact portion may be increased, the rigidity of the non-contact portion side of the square cylinder body may be simply increased. As a result, the square cylinder body may be inserted directly into the clearance of the heat transfer tubes in that the square cylinder body is difficult to bend along the non-contact portion.
  • the rigidity of the square cylinder body at the non-contact portion may be further increased by a welding portion, the square cylinder body may be more difficult to bend along the non-contact portion.
  • an inner surface of an angled portion is formed as a curved surface, and as a result, stress which is concentrated on the inner surface of the angled portion by the fluid that flows into the square cylinder body may be reduced. Therefore, deformation of the square cylinder body by the stress may be suppressed and tolerance of the jig main body may be improved.
  • the front end member may be easily inserted into the clearance of the heat transfer tubes.
  • the jig main body may be suppressed from dropping to the clearance of the heat transfer tubes.
  • a first path may be provided to increase in a direction perpendicular to a longitudinal direction.
  • the rear end member may increase in a direction perpendicular to a longitudinal direction of the jig main body. Therefore, the rear end member may be difficult to drop to clearance of the heat transfer tubes.
  • a fourth path may be a path shorter than the first path
  • the rear end member may be simply configured.
  • the jig main body may be manipulated by using a manipulation member.
  • the jig main body may be manipulated by using the manipulation member to allow the jig main body to be submerged in water and to be inserted into the clearance of the heat transfer tubes.
  • the clearance of the heat transfer tubes is increased by using the clearance increasing jig and the vibration suppression member may be inserted into the increased clearance of the heat transfer tubes.
  • the vibration suppression member may be appropriately inserted.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US13/768,526 2012-07-20 2013-02-15 Clearance increasing jig of heat transfer tube and additional installation method of vibration suppression member Active 2033-11-02 US9102024B2 (en)

Applications Claiming Priority (2)

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JP2012162094A JP6071298B2 (ja) 2012-07-20 2012-07-20 伝熱管の隙間拡張治具及び振動抑制部材の追設方法
JP2012-162094 2012-07-20

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Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
JP2014047993A (ja) * 2012-08-31 2014-03-17 Mitsubishi Heavy Ind Ltd 伝熱管の隙間拡張治具及び振動抑制部材の配設方法
JP6066631B2 (ja) * 2012-08-31 2017-01-25 三菱重工業株式会社 伝熱管の隙間拡張治具及び振動抑制部材の配設方法
US20140116360A1 (en) * 2012-10-31 2014-05-01 Westinghouse Electric Company Llc Method and apparatus for securing tubes in a steam generator against vibration
CN113719819B (zh) * 2021-09-09 2024-03-26 北京华科同和科技有限公司 人孔门密封盒及塔式超临界锅炉

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1532100A (en) 1977-06-29 1978-11-15 Ass Elect Ind Tubular heat exchangers
JPS6159196A (ja) 1984-08-29 1986-03-26 Mitsubishi Heavy Ind Ltd 伝熱管群の防振構造
JPS61291896A (ja) 1985-06-20 1986-12-22 Mitsubishi Heavy Ind Ltd 熱交換器の伝熱管支持方法
US4640342A (en) 1984-01-26 1987-02-03 Westinghouse Electric Corp. Expandable antivibration bar for heat transfer tubes of a pressurized water reactor steam generator
US4653576A (en) 1985-05-01 1987-03-31 Westinghouse Electric Corp. Expandable antivibration bar for a steam generator
US4789028A (en) * 1984-11-13 1988-12-06 Westinghouse Electric Corp. Anti-vibration bars for nuclear steam generators
GB2224820A (en) 1988-09-20 1990-05-16 Hick Hargreaves & Co Ltd Heat exchanger tube supports
JPH0631712B2 (ja) 1984-11-13 1994-04-27 ウエスチングハウス エレクトリック コ−ポレ−ション 防振バーとその配列・取付方法
EP0646760A1 (fr) 1993-10-01 1995-04-05 Kvaerner Rosenberg A/S Méthode de réalisation d'un faisceau de tubes renforcé en particulier contre les vibrations, et faisceau de tubes renforcé de ce type
US20120145370A1 (en) * 2010-12-13 2012-06-14 Exxonmobil Research And Engineering Company Inflatable spreading tool

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1532100A (en) 1977-06-29 1978-11-15 Ass Elect Ind Tubular heat exchangers
US4640342A (en) 1984-01-26 1987-02-03 Westinghouse Electric Corp. Expandable antivibration bar for heat transfer tubes of a pressurized water reactor steam generator
JPH0335565B2 (fr) 1984-01-26 1991-05-28 Westinghouse Electric Corp
JPS6159196A (ja) 1984-08-29 1986-03-26 Mitsubishi Heavy Ind Ltd 伝熱管群の防振構造
US4789028A (en) * 1984-11-13 1988-12-06 Westinghouse Electric Corp. Anti-vibration bars for nuclear steam generators
JPH0631712B2 (ja) 1984-11-13 1994-04-27 ウエスチングハウス エレクトリック コ−ポレ−ション 防振バーとその配列・取付方法
US4653576A (en) 1985-05-01 1987-03-31 Westinghouse Electric Corp. Expandable antivibration bar for a steam generator
JPH0684802B2 (ja) 1985-05-01 1994-10-26 ウエスチングハウス エレクトリック コ−ポレ−ション 蒸気発生器における管支持装置
JPS61291896A (ja) 1985-06-20 1986-12-22 Mitsubishi Heavy Ind Ltd 熱交換器の伝熱管支持方法
GB2224820A (en) 1988-09-20 1990-05-16 Hick Hargreaves & Co Ltd Heat exchanger tube supports
EP0646760A1 (fr) 1993-10-01 1995-04-05 Kvaerner Rosenberg A/S Méthode de réalisation d'un faisceau de tubes renforcé en particulier contre les vibrations, et faisceau de tubes renforcé de ce type
US20120145370A1 (en) * 2010-12-13 2012-06-14 Exxonmobil Research And Engineering Company Inflatable spreading tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EESR dated Sep. 24, 2014, issued in corresponding European Application No. 13155335.6; (8 pages).

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JP2014020729A (ja) 2014-02-03
EP2687807B1 (fr) 2018-09-05
US20140020233A1 (en) 2014-01-23
EP2687807A3 (fr) 2014-10-22
JP6071298B2 (ja) 2017-02-01

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